Buffer Memory List (Bfm) - Mitsubishi Electric FX3G User Manual

FX /FX /FX /FX /FX
3S 3G 3GC 3U
FX -4AD/FX -4AD (4-channel Analog Input)
3U 3UC
5.3

Buffer Memory List (BFM)

4AD incorporates the following buffer memories.
→ For a detailed description of the buffer memory, refer to Section 5.4 and subsequent sections.
BFM number
*1
Input mode setting for channels 1 to 4
#0
#1 Not used
#2 Averaging time units for channel 1
#3 Averaging time units for channel 2
#4 Averaging time units for channel 3
#5 Averaging time units for channel 4
#6 Channel-1 digital filter setting
#7 Channel-2 digital filter setting
#8 Channel-3 digital filter setting
#9 Channel-4 digital filter setting
#10 Channel-1 data (current data or average data)
#11 Channel-2 data (current data or average data)
#12 Channel-3 data (current data or average data)
#13 Channel-4 data (current data or average data)
#14 to #18 Not used
Data change disable
Disables adjustment of the following buffer
memory locations:
• Input mode specification (BFM#0)
• Initialization function (BFM#20)
• Input characteristics writing (BFM#21)
*1
#19
• Convenient functions (BFM#22)
• Offset data (BFM#41 to #44)
• Gain data (BFM#51 to #54)
• Automatic transfer-to data register
specification (BFM#125 to #129)
• Data history sampling time setting (BFM#198)
Initialization function:
Set "K1" in this buffer memory to perform
#20 initialization. At the completion of initialization,
buffer memory will be automatically reset to
"K0".
Input characteristics writing:
Write the input characteristics offset/gain value.
#21 At the completion of writing, buffer memory will
be automatically reset to "H0000" (b0 to b3:
OFF).
*1. If power failure occurs, the EEPROM will retain its data.
*2. To specify the input mode of each channel, set each digit using hexadecimal numbers 0 to 8 and F.
*3. Use b0 to b3.
B-22
PLC User's Manual - Analog Control Edition
3UC
Description Setting range Initial value
*2 H0000 at delivery
- -
1 to 4095 K1
1 to 4095 K1
1 to 4095 K1
1 to 4095 K1
0 to 1600 K0
0 to 1600 K0
0 to 1600 K0
0 to 1600 K0
- -
- -
- -
- -
- -
To enable data
change: K2080
To disable data K2080 at delivery
change: Value
other than K2080
K0 or K1 K0
*3 H0000
5 Buffer Memory (BFM)
5.3 Buffer Memory List (BFM)
Data type Reference
Hexadeci- Subsection
mal 5.4.1
- -
Decimal
Decimal
Subsection
5.4.2
Decimal
Decimal
Decimal
Decimal
Subsection
5.4.3
Decimal
Decimal
Decimal
Decimal
Subsection
5.4.4
Decimal
Decimal
- -
Subsection
Decimal
5.4.5
Subsection
Decimal
5.4.6
Hexadeci- Subsection
mal 5.4.7